x=63
Explanation
Step 1
you can easily solve this by using a rule of three
Let
the variation is
[tex]\begin{gathered} x\text{ =35 and y=5 } \\ \frac{x}{y}=\frac{35}{5} \end{gathered}[/tex]then
[tex]\begin{gathered} \text{what is x , when y= 9} \\ \text{the proportion is the same, so} \\ \frac{35}{5}=\frac{x}{9} \end{gathered}[/tex]Step 2
solve for x
[tex]\begin{gathered} \frac{35}{5}=\frac{x}{9} \\ 35\cdot9=5\cdot x \\ \frac{35\cdot9}{5}=x \\ x=\frac{315}{5} \\ x=63 \end{gathered}[/tex]I hope this helps you
